title: Studies on Escherichia coli vaccines: development of an agar-gel immunodiffusion method for the identification of antigens in E. coli vaccines.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000302:isolation & purification*; D001428:Bacterial Vaccines / Q000276:immunology* / Q000592:standards; D004926:Escherichia coli / Q000276:immunology*; D004927:Escherichia coli Infections / Q000517:prevention & control / Q000662:veterinary; D005779:Immunodiffusion / Q000379:methods*; D013552:Swine; D013553:Swine Diseases / Q000517:prevention & control
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines